2497091 has 4 divisors (see below), whose sum is σ = 2514000. Its totient is φ = 2480184.

The previous prime is 2497067. The next prime is 2497097. The reversal of 2497091 is 1907942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2497091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2497097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8231 + ... + 8528.

It is an arithmetic number, because the mean of its divisors is an integer number (628500).

2^2497091 is an apocalyptic number.

2497091 is a deficient number, since it is larger than the sum of its proper divisors (16909).

2497091 is a wasteful number, since it uses less digits than its factorization.

2497091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16908.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 2497091 is about 1580.2186557562. The cubic root of 2497091 is about 135.6682187930.

The spelling of 2497091 in words is "two million, four hundred ninety-seven thousand, ninety-one".